If the speedometer and odometer are both not working, I would blame the speed sensor. If only the speedometer does not work and the odometer does work, the cluster is bad.
The odometer has failed
There are two possible actions: 1) Replace the speedometer head assembly, because that is where your problem is. 2) Ignore the broken odometer and forget about it. The speedometer and odometer are one assembly. The same input that drives the speedo also drives the odometer, so you have a problem in the head itself.
it usually is the gear in the transmission Could be the vehicle speed sensor.
The logical problem - would be a broken speedo cable. The speedo & odometer are both run from the same cable.
probably need to replace the speedometer cable. if turbo check the big one that goes along the firewall possibly got burnt up on the down pipe
BCM being faulty is the most common cause of this concern
If the odometer is not working but the speedometer is still indicating speed, the most likely fault is a set of small plastic gears inside the speedometer instrument itself. I have seen these gears available for sale at various BMW parts specialists. Removing the dash cluster for access to the speedometer is not difficult in a 1987 E30 car. With the cluster on the bench, you can repair the speedometer gears or replace the whole thing. Used speedometers are plentiful at on-line auction sites such as eBay.
Cruise will NOT work if the speedometer has a problem
No, a cougar will scavenge the bodies of animals killed by others or that died of natural causes.
Broken speedometer cable.
If all three are not working then it is a pretty good bet the speed cable is either broken or has come off. The cable runs from the rear of the front left wheel to the back of the speedometer, it looks like a brake cable from a bike. speed sensor could be bad.
my odometer on 2002 volvo s-80 does not work
Depends on your year, and likely the spedometer is reacting to a fault in the speed contoller, or fault with spedometer cable. What code(s) do you pull with testing? My 2000 E250 has an issue with the individual wheel speed sensor, causes abs light to come on and stay on, but no issues with spedometer, however if yours is newer (digital odometer, sounds newer), follow the cable from the spedometer to the speed controller, and it's bracket, check connections, or resistance in ohms. Try another question at the ford truck forum, once you know the codes. Good luck with it. Mac in DC
Is the TCM working normally and throwing no codes?
what causes the speedometer not to work
This is based on my experience with a 1995 200 sx se. I assume they are similar. The se uses the 1.6 engine and the se-r the 2.0. engine. The odometer runs on the same electronic gear driven sensor as the speedometer so if the speedometer is working and the odometer is not the problem is in the "Speed head" (speedometer unit in the dash). Mine and several others I have seen break at about 40,000 and will need replacing but first; If neither are working try to set your Cruise control. If it "goes wild" with clicks etc. and does not work the problem is likely the speed sensor located on the transmission. Find it on top on the transmission rear the fire wall. One set screw hold a small retaining plate. Remove it and pull straight up. The nylon gear wears out and causes it to not contact the drive gear anymore.
You prob have to replace the heater core
If the speedometer doesn't work at all then there could be two causes. The first thing is to check the needle it may be loose on the spindle, secondly there is a relay from the fuse box to the speedometer.
Speedometer cables can dry out over time. Remove the cable from the back of the speedometer, and lube the cable with graphite. This should fix the issue.
It is either the speed sensor or the wiring. Have it checked out.
Have the speed sensor replaced.
does the speedometer effect the transmission
A speedometer that loses response time but gets up to the speed of the vehicle probably has a problem with a gear slipping inside the speedometer mechanism. This sometimes happens in older vehicles. The speedometer cable may have to be replaced to fix this problem.
The speedometer needs to work in a vehicle for safety and informative reasons. The causes of it intermittently working could be the lack of electricity, or a problem with the sensor.Ê